1. Wash and slice the bell pepper into thin strips and trim the green beans.
2. Heat the olive oil in a skillet over medium heat.
3. Add the minced garlic and chili flakes, sautéing for about 1 minute until fragrant.
4. Add the green beans and bell pepper, stirring occasionally.
5. Cook for 7-8 minutes until the vegetables are tender yet crisp.
6. Remove from heat and serve immediately for a satisfying dinner.

Summary:
This light and flavorful dish is perfect for a grown-up dinner, highlighting the natural sweetness of bell pepper and the crunch of green beans enhanced by a subtle spice kick.

Storing Options:
Best enjoyed fresh, but leftovers can be kept in an airtight container in the refrigerator for up to 24 hours. Reheat gently to retain texture.

Possible Side Effects/Allergies:
This recipe is free from gluten, dairy, and nuts. Note that chili flakes may not be suitable for those sensitive to spice. The mild heat from chili flakes might induce a warming sensation; adjust the amount if you prefer a less spicy dish.